3 years ago

A tank is 3 m long 1 m wide and 0.5 m deep is filled with oil which weighs 12000 N

1 answer:

5 0

Area of the bottom = L x W = 3 x 1 = 3 square meters. Pressure = force/area = 12000/3 = 4000 N/square meter = 4 kPa. Since we know the weight of the oil, we don't need to know the depth.

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A large body of matter with no definite shape.
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A yo-yo of mass M has an axle of radius b and a spool of radius R. Its moment of inertia can be taken to be MR2/2 and the thickn

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Answer:

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Given:

M = mass

b = radius

R = spool of radius

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$bT=(\frac{MR^{2} }{2} )(\frac{a}{b} )\\T=\frac{MR^{2}a }{2b^{2} }$ (eq. 1)

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Replacing in eq. 1

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strojnjashka [21]

Answer:

$v=10m/sec$

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$v^2 =\frac{40*10}{4}$

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Therefore the speed of the roller coaster is given ton be $v=10m/sec$

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3 years ago